Attachment for woodworking-machines.



W. T. BOOTHBY.

ATTACHMENT FOR WOODWORKING MACHINES.

APPLIOATIOK FILED JAN. 13, 1911.

1,022, 176, Patented Apr. 2, 1912.

2 SHEETS-SHEET 1.

Witnesses Inventor Attorneys COL!) BIA PLANOGHAPII CD" WASHINGTON. D. C.

W V Attorney;

W. T. BOOTHBY.

ATTACHMENT FOR WOODWOBKING MACHINES.

APPLICATION FILED JAN. 13, 1911.

1,022, 1 76. Patented Apr. 2, 1912.

2 BHBETB-SHEET 2.

Wifnesses Inventor colnmum I'LANOGHAPH L c.

UNITED STATES PTEN T OFFICE.

WILLIAM T. BOOTHBY, 0F MARIETTA, OHIO, ASSIGNOR 0F ONE-HALF TO GEORGE B. H.

SANDFORD, OF MARIETTA, OHIO.

ATTACHMENT FOR WOODWORKING-MACHINES.

Specification of Letters Patent.

Patented Apr. 2, 1912.

To all whom it may concern:

Be it known that I, l/VILLIAM T. BOOTHBY, a citizen of the United States, .residing at Marietta, in the county of WVashington and State of Ohio, have invented a new and useful Attachment for Woodworking- Ma chines, of which the following is a specification.

It is the object of this invention to provide a series of holding elements, adapted to be connected with a wood-working machine, whereby the material which is being worked in the machine, may be held in adjusted positions.

Another object of the invention is to provide a novel means for assembling the various constituent parts of these holding elements, and to provide novel means for assembling the holding elements with the machine upon which they are employed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings,Figure 1 shows the invention in perspective, applied to a woodworking machine; Fig. 2 is a perspective, showing one of the holding elements of Fig. 1, in an adjusted position; Fig. 3 is a perspective showing a slight modification ot' the structure depicted in Fig. 2; Fig. 1 1s a fragmental top plan of one of the structures whereby the spring tongues are connected with the carrying members; Fig. 5 is a bottom plan of the structure delineated in Fig. 4; Fig. 6 is a sectional elevation of one of the holders; Figs. 7 and 8 are elevations of the holder shown in Fig. 6, the structures shown in Figs. 7 and 8 being viewed at right angles, in the two views; and Fig. 9 is an end elevation of one of the blocks whereby parts of the structure are connected.

In the drawings, the table of a woodworking machine is shown, and denoted by the numeral 1.

The numeral 2 designates a standard, fixed to and rising from the table 1, the standard 2 being intended to typify any portion of a woodworking machine, to which the device of my invention may be connected.

In carrying out the invention there is provided a U-shaped support 3, adapted to be straddled upon the standard 2. In order that the support 3 may be held upon the standard 2, and in order that the several constituent elements of the structure hereinafter described, may be held together and adjusted, a plurality of clamping devices, properly positionec, may be employed. Throughout the drawings, these clamping devices are represented in the form of clamp screws, but it will of course be understood that any mechanical equivalent for these clamp screws, may be substituted therefor, without in any wise jeopardizing the utility of the invention, or altering substantially, the operation thereof. The support 3, then, is connected with the standard 2 by means of a clamp screw 4. Slidable in the support 3, substantially at right angles to the standard 2, and in a horizontal direction, is a rod 5, relative movement between the rod 5 and the support 3 being prevented, by means of a clamp screw 6, threaded into the support 3, and adapted to engage the rod 5. The rod 5 is provided with a head 7, in which a rod 8 is mounted for longitudinal sliding movement and for rotation, the rod 8 being disposed substantially at right angles to the rod 5. A clamp screw 9 is located in the head 7, this clamp screw being adapted to engage the rod 8, to hold the same against movement in the head 7.

The rod 8 at its forward end, is provided with a head 10, in which a rod 11 is mounted for longitudinal sliding movement, and for rotation, the rod 11 being disposed substantially at right angles to the rod 8, and substantially parallel to the rod 5. Movement of the rod 11 in the head 10 is prevented by means of a clamp screw 12, threaded into the head.

Spaced blocks 11 are slidable and rotatable upon the rod 11, these blocks 14 being held adjustably from the rod 11 by means of set screws 15, which are threaded into the blocks. Arms 16 are slidable and rotatable in the blocks 14, the arms being disposed substantially parallel to the rod 8, and substantially at right angles to the rods 5 and 11. These arms 16 are adjustably held in the blocks 14 by means of set screws 17 (see Fig. 9), the set screws 17 being threaded into the blocks 14:.

Holders 18 are rotatable and slidable upon the arms 16. These holders, one of which is clearly shown in Fig. 1, is split, as shown at 19, and clamp bolts 20 serve to bind the split holders 18 upon the armslG. Clamp plates 21 are superposed upon the holders 18, the clamp plates 21 and theholders 18 being provided with oppositely disposed, outstanding ears 22. Clamp bolts 23 unite the ears of the clamp plates 21 with the ears of the holders 18, so that the clamp plates 21 may cooperate with the holders 18 to bind adjustably between them, depending spring arms 24, the lower extremities of which are turned as at 25, to bear upon the upper edge of a stick of timber, denoted by the numeral 26 in Fig. 1.

The invention further includes U shaped holders 27, adapted to be saddled upon the edge of the table 1 of the wood-working machine, these holders 27 being maintained in place upon the table, by means of clamp screws 28, threaded into the lower arms of the holders. By referring particularly to- Fig. 6, and comparing Fig. 6 with the remaining figures of the drawing, it will be seen that through each holder 27, a stem 29 extends, the stem 29 being rotatable in the holder 27, and being held in place by a nut or the like, denoted by the numeral 30. To the stem 29, jaws 31 are connected by means of a pivot element 32, extended through the jaws, and through the stem 29. A clamp screw 33 is extended through the free ends of the jaws 31, and thus the jaws are made to cooperate in holding the rods 35, the rods 35, when the clamp screws 33 are loosened, being freely rotatable, and longitudinally slidable between the jaws 31. The stem 29 is prevented from rotating in the holder 27 by means of a clamp screw 31, threaded into the holder.

By means of the holders 18 and the clamp plates 21, hereinbefore described, arms 36 are adjustably secured to the rods 35, for rotation, and for sliding movement thereon. These arms 36, as clearly shown in Fig. 1, are adapted to bear against one of the side faces of the stick of timber 26, to cooperate with the spring arms 24, in holding the stick of timber in place upon the bed or table 1 of the wood-working machine.

Noting particularly Fig. 2, it will be seen that if the clamp screw 34; is loosened, the stem 29 may be rotated, permitting the rod 35 to tilt, and positioning the arm 36 at an angle to the vertical, so as to hold the stick of timber 40 of Fig. 2, in an inclined position against a suitable support S. By means of this construction, the stick of timber 40 may be inclined, so that its upper edge may be planed oft at a bevel, the position of the stick of timber also permitting it to be sawed through at an angle, or otherwise worked, at an angle to its outer faces.

As clearly shown in Fig. 3, the arms 36 may be mounted in duplicate upon the rod 35, thus permitting a double bearing against the stick of timber 37, the stick 37 beingsupported by an abutment 38 upon the table 1. WVhen the stick of timber is disposed as shown at 37 in Fig. 3, the stick may readily be ripped by a saw 39'.

The drawings show but a few of the many uses to which the device may be put, but when the structure is in the hands of a skilled wood-worker many other applications of the invention will suggest them selves, the specific delineation of which applications is unnecessary.

Having thus described the invention, what is claimed is 1. In a device of the class described, a support adapted to be mounted upon a wood-working machine; an arm adjustably held upon the support for rotation and for longitudinal sliding movement; a second arm disposed at an angle to the first arm, and adj ustably held thereon for rotation and for longitudinal sliding movement; a third arm disposed at an angle to the second arm, and held thereon adjustably, for rotation and for longitudinal sliding movement; a fourth arm disposed at an angle to the third arm, and adjustably held thereon for rotation and for longitudinal sliding movement; and a depending ton 'ue adjustably held upon the fourth arm, for rotation, and for sliding movement longitudinally of said arm.

2. In a device of the class described, a support adapted to be mounted upon a woodworking machine; a rod slidable and rotatable in the support and provided with a head; a rod slidable and rotatable in the head, and disposed substantially at right angles to the first named rod, the last named rod being provided with a head; a rod slidable and rotatable in the last named head, and disposed substantially parallel to the first named rod; blocks slidable and rotatable upon the last named rod; arms slidable and rotatable in the blocks, and disposed substantially at right angles to the last named rod; tongues adjustably held for rotation and for sliding movement upon the arms; and clamping devices in the support, the heads and the blocks.

3. In a device of the class described, a support adapted to be mounted upon a wood-working machine; a rod slidable and rotatable in the support and provided with a head; a rod slidable and rotatable in the head, and disposed substantially at right angles to the first named rod, the last named rod being provided with a head; a rod slidable and rotatable in the last named head, and disposed substantially parallel to the first named rod; blocks slidable and rotatable upon the last named rod; arms slidable and rotatable in the blocks, and disposed substantially at right angles to the last named rod; split holders slidable and rotatable upon the arms; spring tongues superposed upon the holders; clamping plates superposed upon the tongues; clamping devices adjustably uniting the plates with the holders; and clamping devices in the holders, in the blocks, in the heads, and in the support.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of Witnesses.

WILLIAM T. BOOTHBY.

Witnesses:

F. L. SANDFoRn, WM. I-I. SHELDON, G. B. H. SANDFORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

